3 year old tyre with 10k km usage is still very good and fit to use some more . No need change to new tyres, wasting money.
What's the psi you use now ? Driver side door say how many psi?

Inadequate tyre pressure is likely in your case. Avoid 29/30 psi , go for 36 psi depending on your tyre specs on the side , that helps if you can provide pictures on date of manufacture and tyre specs.

With higher pressure, do rotation first to see whether same problem crops up later, before spending money now on alignment which may not be necessary especially no accident banging hard on tyre before.

Only do alignment if same thing happens after rotation was done with say, 36 psi.

Edit:Inadequate tyre 'pressure'

This post has been edited by zeng: Aug 31 2019, 02:17 PM

Cracks is on the thread area, still ok and safe to use. But check root of problem first.

This post has been edited by zeng: Aug 27 2019, 02:53 PM

10 years.


This post has been edited by zeng: Aug 27 2019, 03:55 PM

That's underinflation, and very dangerous at prolonged high speed/distance traveling as tyre surely gets hot faster .... leading to tyre burst whilst in motion.



That's a common myth spreading around.
Tyre manufacturer recommends tyre replacement only when tyre tread is 1.6 mm or 10 years post production in normal use.
My XM2 pair was replaced at about 115,000 km usage when tread depth was 2 mm , the tyre age was around 7 years.
Currently another pair of XM2 is at about 60000 km usage/tyre age about 4 over years all running at 300 kph (44 psi) where manual says Front 31 psi Rear 35 psi... ..... still in use with about 3-4 mm tread depth.Won't change them until 1.6 mm or so tread depth.

I stopped rotating tyres a long long time ago, like some 10-15 years.

Bitog on tyre pressure.

This post has been edited by zeng: Aug 28 2019, 10:19 AM

Yes.
At 260 kpa, you're in compliance with tyre manufacturer specs.
At 300 kpa, also in compliance.
Side marking on your tyre may allow up to 350 kpa maximum , which I see no reason to exceed it in real life .
Select a 'higher' pressure where ride harshness is fine/tolerable with you, whilst having FE.

This post has been edited by zeng: Aug 28 2019, 10:43 AM

Wait, are you using uni-directional aka Ultra High Performance tyres ?

If so, not sure if the tyres are pasang terbalik .

OP, care to provide tyre brand/model/size to see if it's UHP ?

Also indicates on pictures external sides and whether it is left side or right hand side front tyres .

Edit:Anyway it makes no difference to the underinflation issue at hand.

This post has been edited by zeng: Aug 31 2019, 02:36 PM

It is ok as silverstone powerblitz is assymetric , not unidirectional thread tyre.



This post has been edited by zeng: Aug 31 2019, 03:26 PM

External edge wear at front tyres can be explained by physics as valid as brought up by some posters above. This phenomenon could be further aggravated by any one or all of the following scenarios , namely:
a )hard and sharp cornering at higher speeds and rougher road surface during cornering,which may or may not be the case with TS;
b )Inadequate tyre pressure or heavier loads/passengers even if one follow OEM recommended tyre pressures displayed at driver side door pillar, which surely applies in TS case here; and/or
c )Incorrect alignment in having too much toe-in , which cost some $$$ to do now, or while changing new tyres in future.

IMHO, spending some $$$ to rotate tyres today (and more $$$ if alignment is done simultaneously today) is not quite worth it for the potential savings (but is not definite saving, mind you) in getting marginal 'extra' 3000-5000 km out of (low'ish RM buying price ) front tyre life, IF there is really such problems which I'm not convinced.

But, that's up to TS really ..... which I personally won't recommend spending $$$ today other than increasing front tyre pressure from very low'ish 200 kpa (vs OEM's 220 kpa) to say 230-260 kpa, and then observe or move from there.

Edit:I'm doing 280 kpa with Wira and 300 kpa with Avanza 1.3 currently.

This post has been edited by zeng: Sep 3 2019, 02:32 PM